Posts by candido
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(Message 4303)
Posted 30 Mar 2015 by candido Post: I noticed that all WU downloaded today failed... |
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(Message 4220)
Posted 23 Mar 2015 by candido Post: Same problem, tens of downloads failing. |
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Message boards :
News :
Badges
Posted 20 Nov 2012 by candido Post: How do you put you GPU Grid publications on the statseb.fr signature. Is is an uploaded image? |
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Message boards :
News :
Badges
Posted 20 Nov 2012 by candido Post: They look great!! |
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(Message 332)
Posted 24 Oct 2012 by candido Post: Problem solved!! Thanks for the help. ccandido |
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(Message 330)
Posted 24 Oct 2012 by candido Post: I'll do that right away. Many thanks Kyong |
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(Message 328)
Posted 24 Oct 2012 by candido Post: Thanks for the quick reply from all of you I guess I will try to install the 32 bit libs (ia32-libs) I have no idea how to do that, at the moment, but I will search the net. I have also downloaded jujube virtual machine and might also try that. Thanks for your help ccandido |
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(Message 324)
Posted 24 Oct 2012 by candido Post: Hi, I am having this problem. About 2/3 of all downloaded wu fail in the first second after starting. This is not too big a problem as almost no time of computing is waisted, however, it does increase some data traffic, which is not a problem for me, but might be for the server if other people are having the same problem. I have an i7 2630, win 7, 64 bit, as a host, runing debian 64 (Linux 2.6.32-5-amd64) on an oracle VBox. boinc manager is v. 6.10.58. (MAchine nr 2950) error are: Dom 21 Out 2012 00:13:48 WEST Asteroids@home Starting ps_120928_86_31_2 Dom 21 Out 2012 00:13:48 WEST Asteroids@home Starting task ps_120928_86_31_2 using period_search version 10100 Dom 21 Out 2012 00:13:48 WEST Asteroids@home Starting ps_120928_83_221_2 Dom 21 Out 2012 00:13:48 WEST Asteroids@home Starting task ps_120928_83_221_2 using period_search version 10100 Dom 21 Out 2012 00:13:49 WEST Asteroids@home Computation for task ps_120928_86_31_2 finished Dom 21 Out 2012 00:13:49 WEST Asteroids@home Output file ps_120928_86_31_2_0 for task ps_120928_86_31_2 absent Dom 21 Out 2012 00:13:49 WEST Asteroids@home Resuming task ps_120928_89_287_2 using period_search version 10100 Dom 21 Out 2012 00:13:50 WEST Asteroids@home Computation for task ps_120928_83_221_2 finished Dom 21 Out 2012 00:13:50 WEST Asteroids@home Output file ps_120928_83_221_2_0 for task ps_120928_83_221_2 absent Dom 21 Out 2012 00:13:50 WEST Asteroids@home Resuming task ps_120928_83_214_2 using period_search version 10100 Dom 21 Out 2012 00:14:03 WEST Asteroids@home task ps_120928_87_47_2 resumed by user Dom 21 Out 2012 00:14:03 WEST Asteroids@home Starting ps_120928_87_47_2 Dom 21 Out 2012 00:14:03 WEST Asteroids@home Starting task ps_120928_87_47_2 using period_search version 10100 Dom 21 Out 2012 00:14:04 WEST Asteroids@home Computation for task ps_120928_87_47_2 finished Dom 21 Out 2012 00:14:04 WEST Asteroids@home Output file ps_120928_87_47_2_0 for task ps_120928_87_47_2 absent Is there anything I can do to solve this? thanks |
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(Message 271)
Posted 19 Sep 2012 by candido Post:
Hi jujube, no it did not. the Debian 64 was better than the ubuntu 32 but both these guest OS had worst benchmarks than the host. Much worst!
At the moment, I am only running asteroids so 6.10.58 is OK, at least for me. But if you want to post the instructions, someone (more apt than I am) might put them to good use. ccandido |
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(Message 268)
Posted 18 Sep 2012 by candido Post: hi jujube. Can you quantify the difference? Although you found a small diference, which one was the better? |
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(Message 267)
Posted 18 Sep 2012 by candido Post: Hi. The 64 bit Debian 6.0.5 is now running on a i7 2630 QM (laptop) and it has low benchmarks either. I have exported the other 32 bits Ubuntu VM from my other laptop to this i7 2630 QM. Took me 20 minutes give or take to export the VM from one laptop to the other!!!! This means I now have two VM in my i7 laptop. I ran, at the same time, 4 WU in the 64bit Debian VM and 1 WU in the 32bit Ubuntu VM. WU in the Debian completed in an average of 36532 secs (10.1 hours) approx, the WU in the Ubuntu took secs 37855 (10.5 hours, +3.6%) (CPU time, not Run time). I only compared 4 WU in one OS with 1 WU in the other OS, this is not a fair comparison. But I am keeping the Debian and stoping the ubuntu, although the Boinc Manager is the ubuntu looks beter and the BM in the Debian is the old 6.10.58. Benchmarks for the debian with activity suspended on the host: Benchmark results: Number of CPUs: 4 1273 floating point MIPS (Whetstone) per CPU 11392 integer MIPS (Dhrystone) per CPU the FLOPS are lower than the Host (1888 FP MIPS) the integer ops are much higher than the host (5912 I MIPS) !!!!???? |
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(Message 264)
Posted 17 Sep 2012 by candido Post: Many thanks I am going to do this now. ccandido |
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(Message 262)
Posted 17 Sep 2012 by candido Post: I see. Thanks MarkJ May I ask why you use a 32 bit linux version on this 64 bit computer, especially if this makes you loose some cpu capacity? I am instaling debian 6.0.5 on another machine and in this case i choose a 64 bit debian. I only use this for runing boinc / asteriods . Is this the best choice? ccandido |
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(Message 261)
Posted 17 Sep 2012 by candido Post: Hi MarkJ. Thanks for your reply. I am not an expert, but I think you are asking whether I enabled the virtualization hardware in the BIOS. I checked and my BIOS has nothing related to virtualization. So the option im mention in acceleration is not available in this computer) and I had to install ubuntu 32 bits in a 64 bit windows 7 Host. Would this then explain the loss in the CPU Flops and IOps? Thanks ccandido EDIT: sorry I posted before seeing your 2nd post. |
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(Message 258)
Posted 17 Sep 2012 by candido Post: Stop boinc and anything else that is processor intensive in windows before running benchmarks in the VM if you want accurate benchmark results. Hi, im may case stoping intensive apps. in the host did improve Flops from 1450 to 1800 aprox and IOps from 4900 to 5500 aprox, but these numbbers are still far from 'normal' (2100 and 6300 approx). I guess the loss is the consequence of having Virtul Box, task manager (occasionaly) and System processes consuming CPU. These processes would not be runnig at the same time (or would not consume so much CPU) so the FLOPs would be higgher without the VM. |
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(Message 257)
Posted 17 Sep 2012 by candido Post: Hi, MarkJ will these commands work in Debian 6.0.5 64 bits installed on a Virtual Box VM? Thanks |
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(Message 249)
Posted 16 Sep 2012 by candido Post: Thanks Kyong. In case I decide to install a virtual machine on other computers I will try to use Debian and a more stable version of Boinc Manager and then check the number of Flops again. In case they don't show a big diference I will replace ubuntu with Debian. Meanwhile i am almost completing my 2nd asteroids WU and so far so good, And, since you mentioned that the 6,5 hours processing time for a WU seems OK, I will leave this machine untouched for a while and see how it goes. ccandido |
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(Message 245)
Posted 16 Sep 2012 by candido Post: Hi,after pondering i decided to give it a try and installed Oracle VirtualBOX, then Ubuntu 12.04 on a virtual machine, and then linux BoincManager on this virtual machine. I followed the instructions here (http://asteroidsathome.net/boinc/forum_thread.php?id=27&nowrap=true#166) for preparing the VBOX CD-ROM. Then followed the wizzard recomendations of the oracle VBox instalation program. (Did not change any of the recommended / default instaltion values for the creation of a virtual machine , including type of virtual hard drive, size, size of virtual RAM, etc.) After that I followed these instructions (http://asteroidsathome.net/boinc/forum_thread.php?id=18&nowrap=true#212) to install boincmanager on my linux virtual machine. I got version 7.0.36. My computer is a 64bit laptop with approx 3 or 4 years, Pentium(R) Dual-Core CPU T4300 @ 2.10GHz [Family 6 Model 23 Stepping 10]. The Host OS is Win 7, 64 bit. It has been showing consistently on other project I am participating: Measured floating point speed: 2131.79 million ops/sec Measured integer speed: 6294.65 million ops/sec But the virtual machine I installed (Linux 3.2.0-29-generic, BOINC 7.0.36, RAM 495.97 MB, Cache 6144 KB, Swap space 510 MB, Total disk space 7.47 GB, Free 4.64 GB) shows only: Measured floating point speed: 1452.09 millão ops/seg (-32%) Measured integer speed: 4872.34 millão ops/seg (-23%) This is very big drop in the computing capacity. Is this real? Has there been a reall drop in computing capacity in the virtual machine? Additional info: 1. If i run CPU benchmarks, numbers vary a bit but not significantly. 2. I still have boinc manager running on the host OS (windows 7) but am using only 50% of the processors (meaning 1 of the existing 2). 3. before installing the virtual machine I isntalled ubuntu side-by-side with windows twice, and twice had problems. Boinc did not run appropriatly, etc. But on these two ocasions, the same laptop showed these numbers: 1st instalation Linux 2.6.32-41-generic-pae BOINC 6.10.17 RAM 3859.25 MB Cache 1024 KB FLOP : 1354.12 millão ops/seg Measured integer speed: 4807.79 millão ops/seg 2nd install Linux 3.2.0-27-generic BOINC 7.0.27 RAM 3794.28 MB Cache 1024 KB FLOP: 2093.4 millão ops/seg Measured integer speed: 10950.69 millão ops/seg (this time it went up!?) My question is, by using a virtual machine am I losing crunching power? Would it be bigger if I used both processors on my host OS (on other projects) and none in the virtual machine (on asteroids)? thanks ccandido Edit: I just got my first 120 credits on this projec, the WU ran for about 6,5 hours: 48302 18913 16 Sep 2012 | 2:51:35 UTC 16 Sep 2012 | 9:51:34 UTC Completo e validado 23,704.59 21,126.57 120.00 Period Search Application v101.00 |
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(Message 117)
Posted 28 Jul 2012 by candido Post: My computers are toshiba laptops and it doesn't seem a good idea to replace the manufacturer OS. My work computer would be a good candidate for installing linux, but I cannot change the software. I tried to install linux on an old laptot sometime ago but it crashed every time I tried to start the system right after installation... Guess I could try to install linux inside a virtual box, but suspect it might make the computer much slower... For the time being I guess i will wait Thans for the help |
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(Message 114)
Posted 28 Jul 2012 by candido Post: Hi cykodennis. Many thanks for your reply. Although I didn't give you much info, you did give me the answer. I am runnig windows only on my machines and will have to waint until the project starts sending windows wu. |
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